JP2509381Y2 - Replacement blade type waste blade case - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable blade case for removing and discarding the blade body after use in a replaceable knife used for surgery, anatomy and the like.

[0002]

2. Description of the Related Art Conventionally, as an example of this kind of waste blade case, there is one disclosed in Japanese Utility Model Publication No. 62-32012.
In this waste blade case, when the push button part cut out on the lid on the box is pressed down, the protruding part of the push button part causes the blade base part of the spare blade to move from the base end part of the handle. It is designed so that it floats up and only the handle is pulled out of the box, and only the spare blade can be stored inside the box.

[0003]

However, since the notch formed when the push button portion is formed is exposed on the lid, a part of the spare blade inside the box protrudes from the notch, which is dangerous. There were things.

An object of the present invention is to improve the above-mentioned pressing means for the push button portion so that the notch is not exposed and the safety is improved.

[0005]

DISCLOSURE OF THE INVENTION As shown in the drawings of the embodiments described later, the present invention is a waste blade provided with a gripping body 2 having a storage space 7 for discarding the blade body 19 of a replaceable knife 18 The case 1 is provided. In this replaceable knife 18, the blade body 19 is formed with a fitting hole 20 having a wide insertion hole 21 and a narrow engagement hole 22 continuous to the tip end side of the insertion hole 21. . In the knife 18, the blade mounting portion 24 on which the blade 19 is overlapped is provided with a fitting projection 25 into which the fitting hole 20 of the blade 19 is fitted, and at the tip end side of the fitting projection 25. Is the edge portion 2 of the locking hole 22 of the blade body 19.
A locking groove 26 for engaging the 2a is formed. An insertion port portion 6 is formed in the grip body 2, and a pressing portion 8 applied to the blade body 19 or the fitting projection 25 is provided in a storage space 7 in the grip body 2 communicating with the insertion port portion 6. It is provided.

An elastic body 12 is provided in a notch 11 provided in the grip body 2, and a pressing portion 13 of the elastic body 12 presses the fitting projection 25 or the blade body 19. . The operation knob 14 is movably provided on the grip body 2, and the pressure receiving surface 12a of the elastic body 12 is pressed by the pressing surface 14a of the operation knob 14. Then, when the operation knob 14 is moved to a position where the elastic body 12 is pressed, the insertion portion 20 of the blade body 19 is inserted by the pressing portion 8 in the storage space 7 and the pressing portion 13 of the elastic body 12. The hole 21 is adapted to be disengaged from the fitting projection 25 of the blade mounting portion 24.

The operation knob 14 closes the notch 11 of the grip body 2 at any position.

[0008]

As shown in FIG. 2 (a), the blade 19 of the knife 18 is used.
When the fitting protrusion 25 of the blade attachment portion 24 is inserted into the storage space 7 through the insertion opening 6, for example, the blade 19 is placed on the pressing portion 8 as shown in FIG. 2B. . Then, as shown in FIG. 6, when the operation knob 14 is moved, the elastic body 12 is bent toward the storage space 7 side and the pressing portion 13 of the elastic body 12 presses the fitting protrusion 25 of the blade attachment portion 24, for example. Be done. Therefore, the blade body 19 supported on the pressing portion 8
Bends away from the blade mounting portion 24, and the fitting hole 2 of the blade 19
The insertion hole 21 of 0 is disengaged from the fitting protrusion 25 of the blade mounting portion 24. After that, when the knife 18 is pulled out from the waste blade case 1, the edge portion 22a of the locking hole 22 of the fitting hole 20 is fitted into the fitting projection portion 2.
5, the fitting protrusion 25 comes out of the fitting hole 20, the blade body 19 is separated from the blade attachment portion 24, and the blade body 1
Only 9 remains in the storage space 7.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A waste blade case according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the waste blade case 1 has a gripping body 2, and a protective wall 3 wider than the gripping body 2 is provided at the front end of the gripping body 2 so as to project in four directions. A step portion 3 a is formed between the outer periphery of 2 and the protective wall 3. A recess 5 surrounded by a peripheral wall 4 is formed on the front surface of the protective wall 3.

An insertion opening 6 is formed in the recess 5 of the protection wall 3. A storage space 7 is formed in the grip body 2 and communicates with the insertion opening 6. As shown in FIG. 3, a pair of left and right pressing portions 8 project at a corner between the protective wall 3 and the lower wall 2a of the grip 2 inside the storage space 7 slightly inside the insertion opening 6. The guide groove 9 between the pressing portions 8 is continuous with the insertion opening 6.

A lid 10 is provided at the rear end of the grip body 2 so as to be openable and closable. As shown in FIG. 3, a U-shaped cutout 11 is formed in the upper wall 2 b of the grip body 2, and an elastic body 12 formed by the cutout 11 is provided in the storage space 7 in the grip body 2.
It can bend to the side. Inside the elastic body 12, a pressing portion 13 is provided so as to protrude downward near the left and right pressing portions 8.

Particularly in this embodiment, the pressing means for the elastic body 12 is significantly different from the prior art. The grip body 2
The operation knob 14 is placed on the upper wall 2b. A guide hole 15 is formed in the upper wall 2b behind the elastic body 12 so as to extend in the front-rear direction. A protrusion 16 formed inside the operation knob 14 is inserted into the guide hole 15, and a tension coil spring 17 is connected between the protrusion 16 and the rear end of the upper wall 2b in the storage space 7 of the grip body 2. Has been done. Therefore, the operation knob 14 is moved rearward along the guide hole 15 and stopped by the elastic force of the tension coil spring 17. Further, as shown in FIG. 6, when the operating knob 14 is moved forward against the elasticity of the tension coil spring 17, the pressing surface 14 a inside the operating knob 14 contacts the pressure receiving surface 12 a on the elastic body 12. Elastic body 1 for contact
2 is bent to the storage space 7 side against the elastic force. The operation knob 14 closes the notch 11 and the long hole 15 of the upper wall 2b at any moving position, and these are cut off.
Not exposed outside of b.

A blade body 19 of a knife 18 shown in FIGS. 4 and 5 is stored in the storage space 7 of the waste blade case 1. Female 1
The blade body 19 of No. 8 has an elongated fitting hole 20 formed near the base end portion 19a. The fitting hole 20 has a wide insertion hole 21 and a narrow locking hole 22 continuous to the tip side thereof.
Consists of This blade 1 is attached to the tip of the handle 23 of the knife 18.
A blade body mounting portion 24 on which 9 is superposed is formed, and a fitting projection 25 into which the fitting hole 20 of the blade body 19 is fitted is formed on the front side of the blade body mounting portion 24. Locking grooves 26 are formed on both sides of the outer periphery of the fitting projection 25 toward the tip side.

When mounting the blade body 19, the blade body 19 is superposed on the blade body mounting portion 24 so that the blade body 19 is fitted into the fitting hole 2.
When 0 is applied to the fitting protrusion 25 of the blade mounting portion 24 and the blade body 19 is slid from this state, the locking hole 22 of the fitting hole 20
Both edge portions 22a of the above are engaged with both locking grooves 26 of the fitting protrusion 25, and the fitting hole 20 is fitted into the fitting protrusion 25.

The blade attachment portion 24 of the knife 18 is inserted into the mouth portion 6 of the grip body 2 with its front side facing upward, as shown in FIG. The blade 19 of the scalpel 18 and the fitting projection 25 of the blade mounting portion 24 form the guide groove 9 between the insertion opening 6 and both pressing portions 8.
When it is inserted into the storage space 7 through the above, the left and right sides of the base end portion 19a of the blade body 19 are placed on both pressing portions 8 as shown in FIG. 2B. Then, as shown in FIG. 6, when the operation knob 14 is pushed forward, the elastic body 12 bends toward the storage space 7 side, and the pressing portion 13 of the elastic body 12 causes the blade attachment portion 24.
The fitting protrusion 25 is pushed downward. Therefore, the base end portion 19a of the blade body 19 supported on both pressing portions 8 is bent upward and lifted up from the blade body mounting portion 24, and the fitting hole 2 of the blade body 19 is attached.
The insertion hole 21 of 0 is disengaged from the fitting protrusion 25 of the blade mounting portion 24. After that, when the handle 23 is pulled out from the waste blade case 1,
Both edges 22a of the locking hole 22 of the fitting hole 20 are fitted to the fitting projection 25.
Is disengaged from the engaging groove 26, the fitting projection 25 is pulled out from the fitting hole 20, and the blade body 19 is separated from the blade body mounting portion 24.
Only remains in the storage space 7. When the operation knob 14 is released, the state shown in FIG. 2 is restored.

Particularly in the present embodiment, the operating knob 14
Since the cutout 11 and the long hole 15 of the upper wall 2b of the grip body 2 are not exposed at any movement position of the grip body 2, the blade body 19 remaining in the storage space 7 of the grip body 2 has the cutout 11 or the long hole 15. Since it does not project to the outside from the hole 15, safety is improved.

In the above embodiment, the hole 15 for guiding the operating knob 14 is formed in the upper wall 2b of the grip body 2, but if the tension coil spring 17 is eliminated, this guide hole 1
It is not always necessary to provide 5 on the upper wall 2b. For example, the operation knobs may be supported on both the left and right sides of the upper wall 2b so as to be movable in the front-rear direction.

[0018]

According to the present invention, the blade body 19 is bladed by the pressing portion 13 of the elastic body 12 formed in the grip body 2 and the pressing portion 8 formed in the storage space 7 of the grip body 2. Body attachment part 2
In the waste blade case 1 of the type which can be detached from 4, the operating knob 14 is used as a means for pressing the elastic body 12, and the notch 1 that remains when the elastic body 12 is formed.
Since 1 is closed by the operation knob 14, a part of the blade body 19 in the storage space 7 does not project outward from the notch 11 and safety is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an unused state of a waste blade case according to the present embodiment.

2 (a) is a cross-sectional view showing a state where a replaceable knife is inserted in the waste blade case shown in FIG. 1, and FIG. 2 (b) is an X of (a).
It is a X-ray part expanded sectional view.

FIG. 3 is a partially cutaway plan view showing a state in which an operation knob is removed from the waste blade case shown in FIG.

FIG. 4 is a front view showing a replaceable knife according to the present embodiment.

FIG. 5 is a partial perspective view of the same.

FIG. 6 is a cross-sectional view showing a state in which the operation knob is moved from the state shown in FIG. 2 to press the elastic body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 waste blade case, 2 gripping body, 6 insertion opening part, 7 storage space, 8 pressing part, 11 notch, 12 elastic body, 12
a pressure receiving surface, 13 pressing portion, 14 operation knob, 14a
Pressing surface, 18 replaceable knife, 19 blade, 20 fitting hole, 21 insertion hole, 22 locking hole, 24 blade mounting portion,
25 fitting protrusion, 26 locking groove.

Claims (1)

(57) [Scope of utility model registration request] 1. A wide insertion hole (21) is formed in the blade body (19).
And a fitting hole (20) consisting of a narrow locking hole (22) continuous to the tip side of the insertion hole (21), and a blade mounting portion where the blade (19) is superposed. The fitting projection (2) into which the fitting hole (20) of the blade body (19) is fitted in (24).
5) is provided, and a locking groove (26) into which the edge portion (22a) of the locking hole (22) of the blade body (19) is inserted is formed on the tip side of the fitting projection (25). The replaceable knife (18) is provided with a gripping body (2) having a storage space (7) for discarding the blade body (19), and the gripping body (2) is provided with an insertion opening (6). A pressing portion (8) which is formed and is applied to the blade body (19) or the fitting protrusion (25) in the storage space (7) in the grip body (2) with which the insertion opening (6) communicates. In a waste blade case of a replaceable blade type knife provided with, an elastic body (12) is provided in a notch (11) provided in the grip body (2), and a pressing portion (13) of the elastic body (12) is provided.
It is possible to press the fitting protrusion (25) or the blade (19) by means of the notch (1
The operation knob (14) is movably provided on the grip body (2) so as to close 1), and the pressure receiving surface (12a) of the elastic body (12) is pressed by the operation knob (14).
Elastic body (12)
When the operation knob (14) is moved to a position where the blade body (19) is pressed by the pressing portion (8) in the storage space (7) and the pressing portion (13) of the elastic body (12). )
The insertion hole (21) of the fitting hole (20) of
4) A disposable blade type disposable knife case characterized by being removed from the fitting protrusion (25) of 4).